System for recovery of hydrocarbon-containing fluid from a hydrocarbon-bearing formation
US-2024117722-A1 · Apr 11, 2024 · US
Enhanced foam stability applications and methods
US8985206B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8985206-B2 |
| Application number | US-201213469282-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 11, 2012 |
| Priority date | May 13, 2011 |
| Publication date | Mar 24, 2015 |
| Grant date | Mar 24, 2015 |
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Abstract
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A method for enhancing foam stability in foaming compositions for use in oilfield treatment application, including but not limited to use in mobility control for gas flooding. The method comprises the step of adding to a foaming composition a foam stabilizer of formula (I): wherein R1 is an alkylamido group or a branched or linear alkyl group; R2 and R3 are individually hydrogen or a methyl group; R4, R5 and R6 are individually hydrogen or a hydroxy group, with the proviso that at least one of R4, R5 or R6 is a hydroxyl group; wherein the alkyl group has greater than about 10 carbon atoms. Also disclosed are methods to enhance foam stability in an aqueous foaming composition.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for enhancing recovery of oil from an oil-bearing formation within a reservoir, comprising: (a) introducing a foaming composition comprising an alpha olefin sulfonate under pressure into the oil-bearing formation; (b) introducing a gas under pressure into the oil-bearing formation, wherein the presence of the foaming composition affects the flow of gas within the oil-bearing formation; and (c) extracting oil through a wellbore in the reservoir,…
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Classifications
- E21B43/164Primary
Fixed Constructions · mapped topic
- C09K8/584Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8985206B2 cover?
- A method for enhancing foam stability in foaming compositions for use in oilfield treatment application, including but not limited to use in mobility control for gas flooding. The method comprises the step of adding to a foaming composition a foam stabilizer of formula (I): wherein R1 is an alkylamido group or a branched or linear alkyl group; R2 and R3 are individually hydrogen or a methyl gro…
- Who is the assignee on this patent?
- Morvan Mikel, Chabert Max, Dahanayake Manilal S, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification E21B43/164. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue Mar 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).